<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <p>
        <a-form layout="inline" :model="param">
          <a-form-item>
            <a-input-search
                v-model:value="param.name"
                placeholder="名称"
                enter-button
                @search="handleQuery({page: 1, size: pagination.pageSize})"
            />
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
          :columns="columns"
          :data-source="ebooks"
          :row-key="record => record.id"
          :pagination="pagination"
          :loading="loading"
          @change="handleTableChange"
          class="components-table-demo-nested"
      >
        <template #bodyCell="{ column, record}">
          <template v-if="column.key === 'cover'">
            <img v-if="record.cover" :src="record.cover" alt="avatar"/>
          </template>
          <template v-if="column.key === 'category'">
            <span v-if="record.category1Id">{{getCategoryName(record.category1Id)}} / {{getCategoryName(record.category2Id)}}</span>
          </template>
          <template v-if="column.key === 'action'">
            <a-space size="small">
              <router-link :to="'/admin/doc?ebookId='+ record.id" >
                <a-button type="primary">
                  文档管理
                </a-button>
              </router-link>
              <a-button type="primary" @click="edit(record)">
                编辑
              </a-button>
              <a-popconfirm
                  title="删除后不可恢复，确认删除?"
                  ok-text="是"
                  cancel-text="否"
                  @confirm="handleDelete(record.id)"
              >
                <a-button type="danger">
                  删除
                </a-button>
              </a-popconfirm>
            </a-space>
          </template>

        </template>
        <template #expandedRowRender="{ column, record }">
          <a-descriptions title="描述：">
            <a-descriptions-item>
              <a-badge status="processing" text="Running" />
              {{record.description}}
            </a-descriptions-item>
          </a-descriptions>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>


  <a-modal
      title="电子书表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleModalOk"
      ok-text="保存"
      cancel-text="取消"
  >
    <a-form :model="ebook" :label-col="{ span: 4 }" :wrapper-col="{ span: 18 }">
      <a-form-item label="封面">
        <a-input v-model:value="ebook.cover" />
      </a-form-item>
      <a-form-item label="名称">
        <a-input v-model:value="ebook.name" />
      </a-form-item>
      <a-form-item label="分类">
        <a-cascader
            v-model:value="categoryIds"
            :field-names="{ label: 'name', value: 'id', children: 'children' }"
            :options="level1"
            expand-trigger="hover"
            placeholder="Please select"
        />
      </a-form-item>
      <a-form-item label="描述">
        <a-textarea v-model:value="ebook.description" placeholder="请输入描述信息" allow-clear />
      </a-form-item>
    </a-form>
  </a-modal>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import { message } from 'ant-design-vue';
import { Tool } from '@/util/tool';

export default defineComponent({
  name: 'AdminEbook',
  setup() {
    const param = ref();
    param.value = {};
    const ebooks = ref();
    const pagination = ref({
      onChange: (page: number) => {
        console.log(page);
      },
      current: 1,
      pageSize: 5,
      pageSizeOptions: [5, 10, 20],
      total: 0,
      showSizeChanger: true
    });
    const loading = ref(false);

    const columns = [
      {
        title: '封面',
        dataIndex: 'cover',
        key: 'cover'
        // slots: { customRender: 'cover' }
      },
      {
        title: '名称',
        dataIndex: 'name',
        key: 'name'
      },
      {
        title: '分类',
        key: 'category'
      },
      {
        title: '文档数',
        dataIndex: 'docCount',
        key: 'docCount'
      },
      {
        title: '阅读数',
        dataIndex: 'viewCount',
        key: 'viewCount'
      },
      {
        title: '点赞数',
        dataIndex: 'voteCount'
      },
      {
        title: 'Action',
        dataIndex: 'action',
        key: 'action',
        // slots: { customRender: 'action' }
      }
    ];
    const innerColumns = [{
      title: '描述',
      dataIndex: 'description',
      key: 'description'
      // slots: { customRender: 'cover' }
    },
      ];
    /**
     * 数据查询
     **/
    const handleQuery = (params: any) => {
      loading.value = false;
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      ebooks.value = [];
      axios.get("/ebook/list", {
        params: {
          page: params.page,
          size: params.size,
          name: param.value.name
        }
      }).then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          // message.success(data.message);
          ebooks.value = data.content.list;

          // 重置分页按钮
          pagination.value.current = params.page;
          pagination.value.pageSize = params.size;
          pagination.value.total = data.content.total;
        } else {
          message.error(data.message);
        }
      });
    };
    /**
     * 表格点击页码时触发
     */
    const handleTableChange = (pagination: any) => {
      console.log("看看自带的分页参数都有啥：" + pagination);
      handleQuery({
        page: pagination.current,
        size: pagination.pageSize
      });
    };

    // -------- 表单 ---------
    /**
     * 数组，[100, 101]对应：前端开发 / Vue
     */
    const categoryIds = ref();
    const ebook = ref();
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleModalOk = () => {
      modalLoading.value = true;
      ebook.value.category1Id = categoryIds.value[0];
      ebook.value.category2Id = categoryIds.value[1];
      axios.post("/ebook/save", ebook.value).then((response) => {
        console.log("handleModalOk.axios params ebook ==="+JSON.stringify(ebook.value) );
        modalLoading.value = false;
        const data = response.data; // data = commonResp
        if (data.success) {
          modalVisible.value = false;
          message.success(data.message);
          // 重新加载列表
          handleQuery({
            page: pagination.value.current,
            size: pagination.value.pageSize,
          });
        } else {
          message.error(data.message);
        }
      });
    } ;

    /**
     * 编辑
     */
    const edit = (record: any) => {
      modalVisible.value = true;
      //解决交互式参数实时变化的问题，编辑表表单未提交表格参数实时发生变化
      ebook.value = Tool.copy(record);
      console.log("==========ebook"+JSON.parse(JSON.stringify(ebook.value)).category1Id +ebook.value.category1Id ) ;
      categoryIds.value = [ebook.value.category1Id, ebook.value.category2Id];
    };
    /**
     * 新增
     */
    const add = () => {
      modalVisible.value = true;
      ebook.value = {};
    };
    const handleDelete = (id: string) => {
      axios.delete("/ebook/delete/"+id).then((response) => {
        const data = response.data; // data = commonResp
        if (data.success) {
          message.success('Delete on Yes');
          // 重新加载列表
          handleQuery({
            page: pagination.value.current,
            size: pagination.value.pageSize,
          });
        } else {
          message.error(data.message);
        }
      });

    }

    /**
     * 查询所有分类
     **/
    let categorys: any;
    const level1 = ref();
    const handleQueryCategory = () => {
      loading.value = false;
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      categorys = [];
      axios.get("/category/all").then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          // message.success(data.message);
          categorys = data.content;
          console.log("原始数组：", categorys);
          level1.value = [];
          level1.value = Tool.array2Tree(categorys, 0);
          console.log("树形数组：", level1);
          //加载玩完分类，再加载电子书，防止异步执行带来的错误
          handleQuery({
            page: 1,
            size: pagination.value.pageSize
          });
        } else {
          message.error(data.message);
        }
      });
    };
    const getCategoryName = (cid: number) => {
      let result = "";
      categorys.forEach((item: any) => {
        if(item.id === cid){
          result = item.name;
        }
      });
      return result;
    }
    onMounted(() => {
      //axios异步执行要保证菜单的数据在电子书数据之前查到
      handleQueryCategory();
      //放到handleQueryCategory的success中
      // handleQuery({
      //   page: 1,
      //   size: pagination.value.pageSize
      // });
    });

    return {
      param,
      ebooks,
      pagination,
      columns,
      innerColumns,
      loading,
      handleTableChange,
      handleQuery,
      handleQueryCategory,
      getCategoryName,

      edit,
      add,

      modalVisible,
      modalLoading,
      handleModalOk,
      handleDelete,
      ebook,
      level1,
      categoryIds,
    }
  }
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
